ARRT Registry review covering Image Production content area
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| What technical factor contributes to the subject contrast of the remnant x-ray beam in digital imaging? | show 🗑
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| What is the term used to describe the appearance of wavy linear lines on an image obtained using computed radiography and a stationary grid? | show 🗑
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| show | Sensing Area, TFT, and Capacitor
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| Of the components affecting geometric un-sharpness (Focal Spot Size, OID, and SID), which affects it inversely? | show 🗑
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| show | Capacitor
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| What effect does increasing the kVp have on image contrast? | show 🗑
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| show | High kVp and Low mAs
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| What technical factor influences photon energy? | show 🗑
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| Off-centering the grid will result in grid cutoff with what appearance? | show 🗑
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| show | Edge Enhancement
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| What is the minimum mAs that will be achieved with a set technique of 500 mA and 70 kV, and a minimum response time of .25 ms? | show 🗑
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| What two units can be used to express resolution? | show 🗑
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| If an image, obtained using a 12:1 grid, demonstrates loss of signal at its lateral edges, this most likely indicates what error? | show 🗑
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| What is the term used to describe the system where an anatomic part is selected and an electronic technique chart is applied? | show 🗑
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| show | On/In the IR
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| What affect does a decrease in kVp have on photon energy and receptor exposure? | show 🗑
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| What is the primary function of x-ray beam filtration? | show 🗑
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| show | 22 mAs
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| show | Reduce the kVp by 15% = 72 kVp; Half the mA = 150 mA; Half the ms = 20 ms.
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| What technical factor has the greatest impact on radiographic IR exposure? | show 🗑
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| show | Tissue Z#, Differential Tissue Absorption, and kVp
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| show | 10:1
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| What change in technical factors would osteomalacia require? | show 🗑
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| show | DR imaging immediately displays the image, while CR imaging requires an extra process to display the image
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| show | Voxel; Z Direction
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| In order to repeat an exposure taken with an 85 kVp, 12 mAs, and 16:1 grid ration, after replacing the grid with an 8:1 grid ratio, what new mAs must be used? | show 🗑
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| What multiplication factor is associated with each grid ratio? | show 🗑
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| Which imaging system requires analog to digital conversion? | show 🗑
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| show | Protective, Phosphor, Electroconductive, Support, Light-Shield, and Protective
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| show | Natural Compression
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| If an exposure is obtained utilizing 90 kVp at 3 mAs without a grid, but you would like to repeat the exposure with a 12:1 grid, what new mAs would you use? | show 🗑
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| show | 6.5 mAs
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| What is the relationship between image resolution, DEL size, and fill factor? | show 🗑
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| What impact does increasing SOD have on spatial resolution? | show 🗑
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| What material makes up the front of an image plate? | show 🗑
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| show | 0.4 mm/pixel
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| show | 4.8 mAs
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| Tube angle, structure position, and radiographic positioning can all create what type of imaging error? | show 🗑
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| show | Increased 56"
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| When obtaining an image utilizing a focused reciprocating grid, what is a major cause of grid cutoff? | show 🗑
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| show | Increases Contrast
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| Which postprocessing function refers to the dynamic range compression? | show 🗑
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| What effect does mAs have on brightness? | show 🗑
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| show | kVp
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| show | Old mAs / New mAs = Old D^2 / New D^2
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| An image was obtained utilizing 300 mA, .03 s, 76 kVp, 40" SID, and 1.2 mm focal spot, but you want to repeat the image utilizing 87 kVp and 12:1 grid. What new exposure time must be utilized? | show 🗑
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| show | Homogenous / Radiolucent
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| show | High Grid Ratio and Lower Grid Frequency
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| What is the purpose of the electroconductive layer of a CR-PSP plate? | show 🗑
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| show | Inverse
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